Amending prior oil and gas production periods

Last updated on June 30, 2026

Oil and natural gas operators have up to 72 months to amend information or reports for an oil or gas production month through Petrinex. 

You may have to pay penalties and interest if the amendment increases your royalty due or if you did not file a report that was required. 

We may audit amendments up to 84 months from the production period.

Invoices

If an amendment results in a change in royalty, the change will be reflected on your next monthly invoice. There will be one row for the reversal/revision and one row for the new entry. Interest may apply.

Available non-refundable credits will impact the amount you will pay and the amount of interest that is charged to you.

Your PDF invoice will be delivered to eTaxBC. You can also find your PDF invoices and CSV file invoices in the Ministry Invoice & Statements section of the Petrinex website.

While your invoice may show an amount being charged, you should always refer to your statement of account to determine exactly what to pay each month.

Books and records

You must keep copies of your records (accounting records, invoices, contracts and agreements, schematics and flow diagrams and volumetrics, etc.) for audit purposes for at least 7 years (84 months) in case we ask you to produce them.

After 84 months, you must have written permission from us before you dispose of any records.

No longer reporting information?

If you were an operator or producer who filed reports necessary to calculate the amount of royalties or taxes due, but are not reporting information through Petrinex, the collector may still issue you an invoice. The invoice may be a result of an amendment you submitted for a prior period or some other reason, such as an audit.

If you are not registered with a Business Associate identification number in Petrinex, we will issue you an invoice and deliver it to you through eTaxBC. If you do not have an eTaxBC account, we will provide you with information on how to register when the invoice is ready to be issued.

Contact information

Find out who to contact for your questions about oil and natural gas in B.C.